Part Category
Diesel Fuel Injectors
Diesel fuel injectors for heavy-duty and Class 8 engines — Cummins ISX/X15, N14, ISM/M11, ISC/ISL and B-Series, plus Caterpillar C15/C15 Acert, 3406E, C7–C18, and Mack/Volvo platforms. We stock PAI Industries remanufactured injectors plus the cross-references to match your OEM, competitor, or superseded part number.
Not sure which injector your engine takes? Send us your engine serial, casting, or the number stamped on the old injector and we'll confirm the right fit before you buy. Most orders ship same-day from Colorado, with free freight over $1,000. Cross-reference a part number or request a quote.
503
Parts Available
Showing 23 of 503 Diesel Fuel Injectors
10R3261 Caterpillar C15
Caterpillar C15
JAK'S JAKS-10R3261
In Stock · Ask About Same-Day Shipping
10R8502 Caterpillar 3406E
Caterpillar 3406E
JAK'S JAKS-10R8502
In Stock · Ask About Same-Day Shipping
10R8501 Caterpillar 3406E
Caterpillar 3406E
JAK'S JAKS-10R8501
In Stock · Ask About Same-Day Shipping
Caterpillar C15
PAI: 390090EX · 10R-1273
JAK'S JAKS-390090EX
JAK'S JAKS-390090EX
Available · Confirm Lead Time
Choosing the Right Diesel Fuel Injectors
Heavy-duty diesel components must be matched to the exact engine and application. Before ordering from this collection, verify the part number, engine model, engine serial number, and any casting or calibration number shown on the original component.
Fitment information to have ready
- OEM, dealer, casting, or interchange part number
- Engine manufacturer, model, and engine serial number (ESN)
- Truck year and model when the component is chassis-specific
- Core details for remanufactured or exchange components
Need a fitment check?
Use the OEM cross-reference tool or text a clear photo of the part tag to (720) 445-6249. A JAK'S Diesel specialist can confirm the match before the part ships.
Can't Find the Right Part?
Text us the part number or a photo of the tag — we'll cross-reference it and quote you the right one.